Electricity Consumption Calculations

Electricity Consumption Calculations

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains how to calculate electricity units consumed by various appliances using two formulas: one based on watts and another on kilowatts. It provides examples of unit calculations for different appliances like tube lights, washing machines, water heaters, and more. The tutorial also discusses the total monthly consumption for a sample household and the potential cost implications based on unit rates.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary difference between the watt-based and kilowatt-based formulas for calculating electricity units?

The watt-based formula includes a division by 1000.

The kilowatt-based formula uses days instead of hours.

The kilowatt-based formula includes a division by 1000.

The watt-based formula uses hours instead of days.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If an appliance is rated at 500 watts and used for 5 hours daily, how many units of electricity will it consume in a month?

75 units

125 units

100 units

50 units

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many units of electricity will 5 LED tube lights, each rated at 20 watts and used for 5 hours daily, consume in a month?

10 units

25 units

15 units

20 units

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the monthly electricity consumption of a washing machine rated at 300 watts, if its motor runs for half an hour daily?

3 units

4.5 units

6 units

7.5 units

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many units will a 2 KW water heater consume if used for 2 hours daily over a month?

60 units

150 units

90 units

120 units

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a fan is rated at 80 watts and used for 10 hours daily, how many units will it consume in a month?

12 units

18 units

24 units

30 units

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the monthly electricity consumption of a fridge rated at 300 watts, if its motor runs for 8 hours daily?

48 units

72 units

60 units

84 units

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